practical improvements only go so far
you could also argue that handbags have a longer lifespan than video cards.
But here's the thing, if you are savvy with your hardware purchases, you can sell them later and make back a good percentage of what bought it for and put that to an upgrade.
The last 3 video card upgrades I've sold my old video card for more than what I bought it for, 3 months later. I think I'm about $30 ahead right now, and I have a much nicer video card.
Just recently I spent $200 on a Logitech G27 racing wheel, quite a bit more than I'd normally spend on a toy. But I bought it with the understanding that later I could sell it for around as much as I paid for it. Well guess what, I sold it for $450 just a couple days ago. I love when my hobbies make me money 🙂
Now if you can do a similar sort of thing with purses, I'd be all for it (and maybe you can, but I'd imagine for the most part they only go down price)